Secondly....yes, there are similarities...as there are bound to be similarities with just about anything. I CERTAINLY get an ALIEN universe, while at the same time feel like everything is fresh, colorful and different enough to stand on its own.

Time and time again Scott has said he wasn't interested in creating the same grungy (lived in, truckers in space) atmosphere that he created in ALIEN. Why would he want o replicate the same design of the first film again? Prometheus is what it is.

And I've heard that the Prometheus itself has been designed by Ben Procter.

And on the general topic: Yes, there are undenieable similaritys in the suit designs, but those could also be compared to a lot of other protective gear, sci-fi designs, diving suits or fetish-fashions.

WTH? The vehicles look nothing alike, and the spacesuits look similar to countless other sci-fi suits from countless other films and video games, because of exactly what Valaquen said. No offense, but to suggest that the Prometheus designs are inspired by Mass Effect is just plain daft.

i don't think that's the problem, nowhere on earth could somebody claim Aliens ripped off Halo and not get thoroughfully insulted, but now that Mass Effect is in the public conscious, people will feel it's too similar or that it should have made a larger effort to stand out from what i believe is the most generic sci fi around.

"Inspired".Not that they actually are the same suits.They obviously have many things in common(collar,shoulder pads,belt,body-form-fitting,color..)and it isn´t that far fetched that they may have gotten some inspiration from Mass Effect.

Considering literally every similarity you just listed has been featured in sci-fi for the last God-knows how many decades, singling out Mass Effect is kind of silly. It's just the loudest and most recent; it's hardly unique.